Scientists are dipping into city sewers in search of drugs. Why? The same reason people on parole take urine tests instead of surveys. You can always lie on a questionnaire; outwitting your toilet, on the other hand, can be a bit more challenging.

Historically speaking, cannabis has been used for a whole slew of tinctures, potions, and other such miracle cures. But for the "nervous persons, weak children, and convalescents" of the 1890s, there was Maltos-Cannabis, a nutritious weight-gaining supplement that set the consumer back a mere 75 cents a can.

Spice, Blaze, K2, Red X Dawn. Any of them sound familiar? They're different brands of synthetic pot — psychoactive drugs (commonly marketed in head shops as incense) which contain chemicals that, much like the THC in marijuana, act on the cannabinoid receptors in your brain. Sounds peachy, right? There's a catch.…

As medical and recreational use of marijuana continues to grow, a dangerous lack of awareness about its health risks could be putting millions of lives at risk. This is the conclusion reached by the British Lung Foundation (BLF), a leading charity that is worried about the "alarming disconnect" between the public…

Archaeologists recently found a 2,700-year-old pot stash, so we know humans have been smoking weed for thousands of years. But it was only about 20 years ago that neuroscientists began to understand how it affects our brains.

The short answer? An absolutely comical amount, perhaps lit by a jet engine. It would also help if you owned a residence in Toontown or were physically a Tex Avery illustration. In a 1988 DEA brief, Judge Francis Young did the math and broke down just how much sticky-icky it would take to off you entirely:

Scientists this week published a study that reveals what the human brain looks like under the influence of psilocybin, the hallucinogenic chemical found in magic mushrooms.

Drugs play a huge role in our lives, but it's hard to find in-depth research on how people take them and what effect it has on their lives. Here's your chance to help change that.

That's the question currently before the Church of England, as an archaeologist has proposed examining William Shakespeare's remains. If nothing else, this is our chance to find out whether Shakespeare wrote the greatest works in the English language...on weed.

Archaeologists recently found a 2,700-year-old pot stash, so we know humans have been smoking weed for thousands of years. But it was only about 20 years ago that neuroscientists began to understand how it affects our brains.